Lamp



FIG. 1 is a perspective view of a lamp showing my new design;

FIG. 2 is another perspective view thereof, but shown with portions removed for clarity of illustration;

FIG. 3 is a another perspective view thereof, but with portions shown in an alternate position;

FIG. 4 is another perspective view of the FIG. 1, but with portions removed for clarity of illustration;

FIG. 5 is another perspective view of the lamp of FIG. 1; and,

FIG. 6 is a top plan view thereof. 

The ornamental design for a lamp, as shown and described. 